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How is fuel injection measured?
Fuel injector size determines how much fuel is able to be injected into the intake system by the injector. Normally, fuel injectors are sized by cubic centimeters per minute of fuel able to flow through them. Another sizing protocol is pounds of fuel per hour per horsepower produced.
How much fuel injector do I need?
For example, a naturally aspirated, 300 hp engine (BSFC 0.5), with 8 injectors will need 23.4 lbs./hr. of fuel per injector at an 80% (0.8) duty cycle. (300 X 0.5) ÷ (8 X 0.8) = 23.4 lbs./hr. You might not find a fuel injector rated for your exact needs.
What is fuel injection quantity?
Injected fuel quantity is the amount of fuel delivered to an engine cylinder per power stroke. It is often expressed in mm3/stroke or mg/stroke. Injection duration is the period of time during which fuel enters the combustion chamber from the injector.
How much PSI does an injection pump have?
Because of the need for positive injection into a very high-pressure environment, the pump develops great pressure—typically 15,000 psi (100 MPa) or more on newer systems.
How much power can 1000cc injectors handle?
The 1000cc Injectors can support 650+whp.
How much power can 60lb injectors support?
60′ will support 600+ rwhp with pump fuel…not the case with e85 at those levels!
What is difference between carburetor and fuel injection?
Unlike carburetors, a Fuel Injection system is comprised of a complex set of electronics and sensors. In carbureted systems the fuel gets drawn from the tank, while in a Fuel Injected system it depends on a fuel pump installed inside the tank for a fine-grained control over fuel flow.
What is Max duty cycle for fuel injectors?
To eliminate the possibility of losing control over the injectors, most tuners size the injectors to the system so that maximum operating duty cycle of the injectors stays at 80 or 85-percent.
How to calculate the correct fuel injector size?
The safe duty cycle is 0.80 for most OE engines and 0.85 for modified and road racing engines. injector size in lbs./hr. = (Max. HP x BSFC) / (number of injectors x duty cycle) We’ll use a stock, early-model Ford 5.0L motor with an advertised 215 horsepower for the following example:
What’s the maximum duty cycle for a fuel injector?
Maximum injector duty cycle (IDC) (In order to be conservative, Fuel Injector Clinic recommends a maximum duty cycle of 90%.)
Which is the best fuel injector to use?
One possible answer is to swap out your stock fuel injectors for larger, higher flowing aftermarket injectors. ACCEL, for example, makes an excellent aftermarket injector that outflows most stock injectors by eight to 14 percent.
Which is engine management system control fuel injectors?
FuelTech FT600, FT550, FT550LITE, and FT450 engine management systems are capable of controlling any fuel injector sizing, even the massive 850 lb/hr injectors found in super-high horsepower applications. The addition of a Peak & Hold driver box to any ECU allows ultimate control of low impedance fuel injectors.